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Seismic Detector Circuit with Piezo(OPA124P)

2017-08-07 12:04  
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This article briefly describes the Seismic Detector Circuit with Piezo (OPA124P). This principle is easy to understand, but also very practical. Depth understanding of circuit elements, can be more effective to grasp this principle. Do you know the circuit, for example, can understand and buy these components: OPA124P , SB140.

The piezoelectric part of a kitchen gas lighter has used this easy, nonetheless effective seismic detector. The piezo part should be mounted vertically, one finish firmly to the bottom. A weight of 2 to a few pounds of fine gravel in a very bulk packaging placed higher than the opposite facet. The high voltage wire planning to theICU, close to the piezoelectric part.

Figure:1 Circuit diagram

Figure 1 Circuit diagram

The whole box is acoustic and electromagnetic screening. A 3-shielded cable brings the signal to the remainder of the circuit and power ( / – 15V). SB140 Schottky diodes are the kind and pin eight (substrate) of the CI should be grounded.



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